Single input fuzzy controller (SFLC) based maximum power point tracking

This paper presents a single input fuzzy controller (SFLC) for adjusting the duty cycle of a photovoltaic (PV) charger to extract the maximum power out of a PV panel. The algorithm is based on maximum power point tracking (MPPT) and is compared with two conventional MPPT techniques, namely the Hill climbing method and the two input fuzzy controller method. The PV system design and modeling is described for a 150 watt standalone PV system with a buck converter charger. The performance of the proposed system is analyzed through numerical simulation and compared to the conventional methods.